beatandraise : SEC Filings Research with AI

beatandraise.com

2.2.0.25truefalse41601 - Disclosure - Line of Business Information (Details)truefalsefalse1falsefalseUSDfalsefalse1/1/2011 - 3/31/2011 USD ($) USD ($) / shares $Duration_1_1_2011_To_3_31_2011http://www.sec.gov/CIK0000093751duration2011-01-01T00:00:002011-03-31T00:00:00Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit15Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$2falsefalseUSDfalsefalse1/1/2010 - 3/31/2010 USD ($) USD ($) / shares $Duration_1_1_2010_To_3_31_2010http://www.sec.gov/CIK0000093751duration2010-01-01T00:00:002010-03-31T00:00:00Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit15Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$2false0us-gaap_FeesAndCommissionsFiduciaryAndTrustActivitiesus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse10950000001095000000falsetruefalsefalsefalse2truefalsefalse895000000895000000falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryIncome from services rendered by trust departments or by any consolidated subsidiaries acting in a fiduciary capacity, including fees earned for (1) acting as an agent for fiduciary placement and loans and (2) custody or investment advisory services when such fees are not separately billed to the customer. This item excludes commissions and fees received for the accumulation or disbursement of funds deposited to Individual Retirement or Keogh plan accounts when such are not handled by the reporting entity's trust department.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 9 falsefalseServicing fees3false0us-gaap_AssetManagementFeesus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse236000000236000000falsefalsefalsefalsefalse2truefalsefalse211000000211000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryRevenue recognized in the period for (1) performance (incentive) fees based on the investment results achieved for management of certain institutional accounts and hedge funds, (2) schedule-based fees earned for management of mutual funds and closed-end funds, based either on average daily net assets or on a combination of the average daily net assets and gross income, and (3) other investment management and advisory fees.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-BRD -Chapter 4 -Paragraph 9, 51, 59 -IssueDate 2006-05-01 falsefalseManagement fees4false0stt_TradingServicesRevenuesttfalsecreditdurationTrading Services Revenuefalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse302000000302000000falsefalsefalsefalsefalse2truefalsefalse242000000242000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTrading Services RevenueNo authoritative reference available.falsefalseTrading services5false0us-gaap_InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissionsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse6600000066000000falsefalsefalsefalsefalse2truefalsefalse7200000072000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryFees and commissions from underwriting securities, private placements of securities, investment advisory and management services, merger and acquisition services, and other related consulting fees. Include fees and commissions from securities brokerage activities, from the sale and servicing of mutual funds, from the purchase and sale of securities and money market instruments where the bank is acting as agent for other banks or customers, and from the lending of securities owned by the bank or by bank customers (exclusive of trading revenue). Also includes the bank's proportionate share of the income or loss before extraordinary items and other adjustments from its investments in: unconsolidated subsidiaries, associated companies and corporate joint ventures, unincorporated joint ventures, general partnerships, and limited partnerships over which the bank exercises significant influence and that are principally engaged in investment banking, advisory, brokerage, or securities underwriting activities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 13 -Subparagraph c -Subsection II Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Subparagraph b -Article 9 falsefalseSecurities finance6false0us-gaap_FeesAndCommissionsOtherus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse9200000092000000falsefalsefalsefalsefalse2truefalsefalse120000000120000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryFee and commission revenue earned from sources not otherwise specified in the existing taxonomy.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number EITF85-24-1 falsefalseProcessing fees and other7false0us-gaap_FeesAndCommissionsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse17910000001791000000falsefalsefalsefalsefalse2truefalsefalse15400000001540000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal fees and commissions earned from providing services such as leasing of space or maintaining: (1) depositor accounts; (2) transfer agent; (3) fiduciary and trust; (4) brokerage and underwriting; (5) mortgage; (6) credit cards; (7) correspondent clearing; and (8) other such services and activities performed for others.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 13 -Subsection II Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 9 falsefalseTotal fee revenue8false0us-gaap_InterestIncomeExpenseNetus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse577000000577000000falsefalsefalsefalsefalse2truefalsefalse661000000661000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAmount of net interest income or expense derived from banking operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 10 -Article 9 falsefalseNet interest revenue9false0us-gaap_MarketableSecuritiesGainLossus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse-7000000-7000000falsefalsefalsefalsefalse2truefalsefalse9500000095000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain or loss of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain or loss which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any losses recognized for other than temporary impairments of the subject investments in debt and equity securities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 13, 22 falsefalseGains (Losses) related to investment securities, net10false0us-gaap_Revenuesus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse23610000002361000000falsefalsefalsefalsefalse2truefalsefalse22960000002296000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 falsefalseTotal revenue11false0us-gaap_ProvisionForLoanAndLeaseLossesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse-1000000-1000000falsefalsefalsefalsefalse2truefalsefalse1500000015000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe sum of the periodic provision charged to operations, based on an assessment of the uncollectibility of the loan and lease portfolio, the offset to which is either added to or deducted from the allowance account for the purpose of reducing loan receivable and leases to an amount that approximates their net realizable value (the amount expected to be collected).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Chapter 5 -Paragraph 168, 169, 170 -IssueDate 2006-05-01 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 9 falsefalseProvision for loan losses12false0us-gaap_OperatingCostsAndExpensesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse16830000001683000000falsefalsefalsefalsefalse2truefalsefalse15660000001566000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryGenerally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense.No authoritative reference available.falsefalseExpenses from operations13false0stt_AcquisitionAndRestructuringCostssttfalsedebitdurationAcquisition-related costs incurred to effect a business combination which costs have been expensed during the period and...falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse1900000019000000falsefalsefalsefalsefalse2truefalsefalse1300000013000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAcquisition-related costs incurred to effect a business combination which costs have been expensed during the period and amount expected to be charged against earning in the current and future periods for the specified restructuring costs.No authoritative reference available.falsefalseAcquisition and restructuring costs14false0us-gaap_NoninterestExpenseus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse17020000001702000000falsefalsefalsefalsefalse2truefalsefalse15790000001579000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal aggregate amount of all noninterest expense.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 14 -Subsection II Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 14 -Article 9 falsefalseTotal expenses15false0us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestmentsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse660000000660000000falsefalsefalsefalsefalse2truefalsefalse702000000702000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetarySum of operating profit and nonoperating income (expense) before income (loss) from equity method investments, income taxes, extraordinary items, cumulative effects of changes in accounting principles, and noncontrolling interest.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 1(i) -Article 4 falsefalseIncome (Loss) from continuing operations before income taxes16false0stt_AverageAssetsInBillionssttfalsedebitdurationAverage Assets (In Billions)falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse158600000000158600000000falsefalsefalsefalsefalse2truefalsefalse142900000000142900000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAverage Assets (In Billions)No authoritative reference available.falsefalseAverage assets17false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.statestreet.com/taxonomy/role/disclosurelineofbusinessinformationdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalseUSDtruefalse{us-gaap_StatementBusinessSegmentsAxis} : Investment Servicing [Member] 1/1/2011 - 3/31/2011 USD ($) $Duration_1_1_2011_To_3_31_2011_us-gaap_StatementBusinessSegmentsAxis_stt_InvestmentServicingMemberhttp://www.sec.gov/CIK0000093751duration2011-01-01T00:00:002011-03-31T00:00:00falsefalseInvestment Servicing [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldistt_InvestmentServicingMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$4falsefalseUSDtruefalse{us-gaap_StatementBusinessSegmentsAxis} : Investment Servicing [Member] 1/1/2010 - 3/31/2010 USD ($) $Duration_1_1_2010_To_3_31_2010_us-gaap_StatementBusinessSegmentsAxis_stt_InvestmentServicingMemberhttp://www.sec.gov/CIK0000093751duration2010-01-01T00:00:002010-03-31T00:00:00falsefalseInvestment Servicing [Member]us-gaap_StatementBusinessSegmentsAxisxbrldihttp://xbrl.org/2006/xbrldistt_InvestmentServicingMemberus-gaap_StatementBusinessSegmentsAxisexplicitMemberUnit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$OthernaNo definition available.No authoritative reference available.falsefalseInvestment Servicing [Member]18false0us-gaap_FeesAndCommissionsFiduciaryAndTrustActivitiesus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse10950000001095000000falsefalsefalsefalsefalse2truefalsefalse895000000895000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryIncome from services rendered by trust departments or by any consolidated subsidiaries acting in a fiduciary capacity, including fees earned for (1) acting as an agent for fiduciary placement and loans and (2) custody or investment advisory services when such fees are not separately billed to the customer. This item excludes commissions and fees received for the accumulation or disbursement of funds deposited to Individual Retirement or Keogh plan accounts when such are not handled by the reporting entity's trust department.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 9 falsefalseServicing fees19false0stt_TradingServicesRevenuesttfalsecreditdurationTrading Services Revenuefalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse302000000302000000falsefalsefalsefalsefalse2truefalsefalse242000000242000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTrading Services RevenueNo authoritative reference available.falsefalseTrading services20false0us-gaap_InvestmentBankingAdvisoryBrokerageAndUnderwritingFeesAndCommissionsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse5900000059000000falsefalsefalsefalsefalse2truefalsefalse5800000058000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryFees and commissions from underwriting securities, private placements of securities, investment advisory and management services, merger and acquisition services, and other related consulting fees. Include fees and commissions from securities brokerage activities, from the sale and servicing of mutual funds, from the purchase and sale of securities and money market instruments where the bank is acting as agent for other banks or customers, and from the lending of securities owned by the bank or by bank customers (exclusive of trading revenue). Also includes the bank's proportionate share of the income or loss before extraordinary items and other adjustments from its investments in: unconsolidated subsidiaries, associated companies and corporate joint ventures, unincorporated joint ventures, general partnerships, and limited partnerships over which the bank exercises significant influence and that are principally engaged in investment banking, advisory, brokerage, or securities underwriting activities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 13 -Subparagraph c -Subsection II Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Subparagraph b -Article 9 falsefalseSecurities finance21false0us-gaap_FeesAndCommissionsOtherus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse6900000069000000falsefalsefalsefalsefalse2truefalsefalse9000000090000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryFee and commission revenue earned from sources not otherwise specified in the existing taxonomy.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number EITF85-24-1 falsefalseProcessing fees and other22false0us-gaap_FeesAndCommissionsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse15250000001525000000falsefalsefalsefalsefalse2truefalsefalse12850000001285000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal fees and commissions earned from providing services such as leasing of space or maintaining: (1) depositor accounts; (2) transfer agent; (3) fiduciary and trust; (4) brokerage and underwriting; (5) mortgage; (6) credit cards; (7) correspondent clearing; and (8) other such services and activities performed for others.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 13 -Subsection II Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 9 falsefalseTotal fee revenue23false0us-gaap_InterestIncomeExpenseNetus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse535000000535000000falsefalsefalsefalsefalse2truefalsefalse627000000627000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAmount of net interest income or expense derived from banking operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 10 -Article 9 falsefalseNet interest revenue24false0us-gaap_MarketableSecuritiesGainLossus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse-7000000-7000000falsefalsefalsefalsefalse2truefalsefalse9500000095000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThis item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain or loss of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain or loss which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any losses recognized for other than temporary impairments of the subject investments in debt and equity securities.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 13, 22 falsefalseGains (Losses) related to investment securities, net25false0us-gaap_Revenuesus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse20530000002053000000falsefalsefalsefalsefalse2truefalsefalse20070000002007000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 falsefalseTotal revenue26false0us-gaap_ProvisionForLoanAndLeaseLossesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse-1000000-1000000falsefalsefalsefalsefalse2truefalsefalse1500000015000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe sum of the periodic provision charged to operations, based on an assessment of the uncollectibility of the loan and lease portfolio, the offset to which is either added to or deducted from the allowance account for the purpose of reducing loan receivable and leases to an amount that approximates their net realizable value (the amount expected to be collected).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Chapter 5 -Paragraph 168, 169, 170 -IssueDate 2006-05-01 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 9 falsefalseProvision for loan losses27false0us-gaap_OperatingCostsAndExpensesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse14530000001453000000falsefalsefalsefalsefalse2truefalsefalse13480000001348000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryGenerally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense.No authoritative reference available.falsefalseExpenses from operations28false0us-gaap_NoninterestExpenseus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse14530000001453000000falsefalsefalsefalsefalse2truefalsefalse13480000001348000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryTotal aggregate amount of all noninterest expense.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 14 -Subsection II Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 14 -Article 9 falsefalseTotal expenses29false0us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestmentsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse601000000601000000falsefalsefalsefalsefalse2truefalsefalse644000000644000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetarySum of operating profit and nonoperating income (expense) before income (loss) from equity method investments, income taxes, extraordinary items, cumulative effects of changes in accounting principles, and noncontrolling interest.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 1(i) -Article 4 falsefalseIncome (Loss) from continuing operations before income taxes30false0stt_PreTaxMarginsttfalsenadurationPre-tax marginfalsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truetruefalse0.290.29falsefalsefalsefalsefalse2truetruefalse0.320.32falsefalsefalsefalsefalseOtherus-types:percentItemTypepurePre-tax marginNo authoritative reference available.falsefalsePre-tax margin31false0stt_AverageAssetsInBillionssttfalsedebitdurationAverage Assets (In Billions)falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1truefalsefalse153500000000153500000000falsefalsefalsefalsefalse2truefalsefalse137900000000137900000000falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAverage Assets (In Billions)No authoritative reference available.falsefalseAverage assets32false0natruenanaNo definition available.falsetruefalsefalsefalsefalsefalsefalsefalsefalsehttp://www.statestreet.com/taxonomy/role/disclosurelineofbusinessinformationdetails1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse5falsefalseUSDtruefalse{us-gaap_StatementBusinessSegmentsAxis} : Investment Management [Member] 1/1/2011 - 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